JP2007263892A - Distribution investigation system of plankton - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a system and a device effective for investigating and publishing a plankton distribution, capable of collecting many samples simultaneously over a wide area of the sea without chartering an investigation ship. <P>SOLUTION: A water sampling device connectable to a floating building or a fixed building on an investigation region of the sea is used, and the water collection device opens/closes at least one water collection tank, and each water intake port provided respectively on each water collection tank at an opening/closing timing, set beforehand. The water collection device is equipped with a water quality detection means for detecting water quality data relative to a collected water sample, a positional information acquisition means for acquiring position information at the water collection time, a means for storing the water quality data and the position information as collected water sample related information, and a means for transmitting them to a server. The server is equipped with a database for accumulating the plurality of received collected water sample related information, an input means for inputting the plankton density and ID of the collected water sample in correlative manner with each other, and a distribution output means for mapping and outputting on a map as plankton distribution information. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a plankton distribution survey system. More specifically, the present invention relates to a plankton distribution survey system and a water sampling device.

  Conventionally, a large amount of harmful plankton (red tide plankton, plant fouling organism larvae, etc.) has caused many damages to power plants and aquaculture caused by blocking power intakes. In order to minimize the damage caused by such harmful plankton, it is necessary to analyze the plankton generation mechanism, and it is necessary to investigate the plankton ecology, distribution period, and distribution area over a wide area. However, at present, when conducting a survey on the distribution of plankton inhabiting the sea area, the survey ship goes to the survey area, and the seawater within the survey area is collected and filtered using a plankton net, etc. They were taken back to the room and counted individually by type by visual observation or microscopic observation.

  FIG. 11 is a diagram showing the appearance of a plankton net 50 that is generally used. That is, the plankton net 50 body is connected with a rope 51, and after being submerged to a certain depth in the survey water area, the plankton net 50 is pulled up vertically to the water surface. The collected net is thoroughly washed with seawater or the like, and the pinch cock 52 at the bottom of the plankton net 50 is turned to collect the collected plankton in a collection container. Next, the type of plankton collected is identified by microscopic observation, antibody test, etc., and the number of individuals for a certain amount of water is counted. The above collection will be conducted every time over the survey area, and the number of plankton distribution will be examined. Also, for types that are distributed on the surface of seawater such as red tide and can be identified from the sky, investigation of the target water area by satellite or aircraft, so-called remote sensing is also being conducted.

On the other hand, in order to reduce pollution caused by harmful plankton, there are systems aimed at hydrosphere purification. For example, Patent Literature 1 discloses a hydrosphere purification system that continuously and automatically observes suspended matter containing phytoplankton in lakes and marine waters and efficiently purifies the hydrosphere.
Japanese Patent Laid-Open No. 5-172728

  In the collection method using the plankton net as described above, in order to examine the distribution over a certain survey area, it is necessary to collect a sample many times, and a large number of workers are required for that, and the cost is also great. . In addition, charter charters are required to collect samples, but there is a problem that it is difficult to obtain samples at the same time in different sea areas because the number of survey ships used is limited.

  In addition, the hydrosphere observation, monitoring and purification system as in Patent Document 1 requires a large-scale device and the collection location is limited, so it is not suitable for a plankton distribution survey that needs to be performed over a wide area to some extent. . Furthermore, methods such as remote sensing are limited to plankton that live near the surface of the water, and there is a problem that they can only be detected after they have occurred in large quantities so that they can be observed from the sky. Absent.

  Therefore, the present invention aims to solve the above-mentioned problems, and can collect a large number of samples simultaneously in a wide area of water without chartering a survey ship using a relatively simple sampling device, and the plankton distribution can be obtained. The purpose is to provide an effective system and device for investigation and publication.

  The present invention provides a solution using the following system and apparatus.

In the first aspect of the present invention,
(1) Consists of a water collection device that can be connected to a floating structure in a survey water area or a fixed structure, and a server provided in an analysis center that analyzes a sample collected by the water collection device. A plankton distribution survey system,
The water sampling device is
At least one water sample acquisition means;
Water intake opening / closing means for separately opening and closing the water intake provided in each of the water sample acquisition means at a preset opening / closing timing;
Water quality detection means for detecting at least one water quality data with respect to each of the water sampling samples at the time of water sampling obtained by the opening of the water intake;
Position information acquisition means for acquiring own position information at the time of sampling;
Means for storing the water quality data and the position information as water sample related information;
Sampling data transmission means for transmitting the sampling sample related information to the server in association with the ID of the sampling sample;
With
The server
A database for accumulating a plurality of the collected water sample related information received from the collected water data transmitting means; an input means for inputting the plankton density obtained by analyzing the collected water sample and the ID in association with each other; Distribution output means for mapping and outputting water sample related information and the plankton density on the map as plankton distribution information;
A system characterized by comprising:

  According to the invention of (1), floating structures (such as buoys and ships) in the survey water area or fixed structures (such as bridges and breakwaters) are used, and for example, FIG. Tie water sampling devices such as ropes and mooring them. The water sampling apparatus is equipped with one or a plurality of water sampling sample acquisition means (for example, the water sampling tank 17 in FIG. 1), and each water sampling sample acquisition means has a separate water intake. The intake port is provided with an openable / closable intake port hatch, and the opening / closing timing is controlled by an internal control device (intake port opening / closing means). For example, the intake hatch is opened sequentially at predetermined time intervals, allowing samples to be acquired at different times.

  Further, the apparatus is provided with water quality detection means (for example, the water quality sensor 18 in FIG. 3) such as a water quality sensor for detecting the water quality at the time of sampling. Furthermore, this apparatus includes a position information acquisition unit (for example, a GPS reception unit) that acquires its own position information. The data obtained by the water quality detection means and the position information acquisition means is stored inside the apparatus as the water sample related information (for example, data in the table of FIG. 7) at the time of water sampling, and the water sampling data at an arbitrary timing. The data is sent to a server in the analysis center by transmission means (for example, the wireless communication unit 32 in FIG. 6). The collected water sample is separately sent to the analysis center, and the sent sample is analyzed in the laboratory of the analysis center. A server provided in the analysis center accumulates collected sample-related information received from the sampler in a database, and is used for analysis in a laboratory. The analysis result is input again to the server as the plankton density together with the ID for each sampled water sample, and is mapped on the map together with the water quality data as plankton distribution information by the distribution output means (for example, the mapping display unit 47 in FIG. 9). The With such a system, samples can be obtained at a number of measurement points at any time, and the plankton distribution in the surrounding water area can be easily investigated.

Furthermore, in the system described in (1),
(2) The water sample related information includes at least one of water temperature, pH, and salt concentration at the time of water sampling.

  According to the invention of (2), various water quality data related to the occurrence of plankton can be obtained simultaneously with the acquisition of the sample by mounting sensors for measuring the water temperature, PH, etc. in the water sampling device, It can be used as basic data to know the mechanism of plankton generation.

Furthermore, in the system described in (1),
(3) The preset timing of the water inlet opening / closing means is determined based on the position information and the time obtained from the internal timer of the water sampling apparatus.

  According to the invention of (3), the timing of water sampling can be set in advance inside the apparatus, and the position information can be used to automatically acquire a sample even when there is no command from the outside.

In the second embodiment of the present invention,
(4) A water sampling device that can be connected to a floating structure or a fixed structure for the study of plankton distribution,
At least one water sample acquisition means;
Water intake opening / closing means for separately opening and closing the water intake provided in each of the water sample acquisition means at a preset opening / closing timing;
Water quality detection means for detecting at least one water quality data with respect to each of the water sampling samples at the time of water sampling obtained by the opening of the water intake;
Position information acquisition means for acquiring own position information at the time of sampling;
Means for storing the water quality data and the position information as water sample related information;
Sampling data transmission means for transmitting the sampling sample related information in association with the ID of the sampling sample;
A water sampling apparatus is provided.

  According to the invention of (4), a similar water sampling device used for the system of (1) can be provided alone. That is, the partner to which the present water sampling device transmits data (sample water sample related information) is not limited to the server of the analysis center, and may be an arbitrary device at an arbitrary location. The transmission is performed, for example, via the wireless communication unit 32 in FIG.

Furthermore, in the apparatus according to (4),
(5) The collected water sample related information includes at least one of water temperature, pH, and salinity concentration at the time of collecting water.

  According to the invention of (5), the present water sampling apparatus can obtain water quality data related to the occurrence of plankton simultaneously with sample acquisition, and the same effect as in (2) can be obtained.

Furthermore, in the apparatus according to (4),
(6) The preset timing of the intake opening / closing means is determined based on the position information and the time obtained from the internal timer.

  According to the invention of (6), the timing of water sampling can be set in advance in the apparatus, and it is possible to automatically acquire a sample even when there is no command from the outside.

  As described above, according to the inventions of (1) to (6), using existing commercial facilities (floating structures such as buoys and ships, or fixed structures such as bridges and breakwaters) existing in the survey water area, A water sampling apparatus that can be easily connected to or attached to these facilities is provided. This makes it possible to investigate the plankton distribution without chartering a dedicated observation ship for the purpose of investigation. In particular, in the inland sea such as the Seto Inland Sea, there are many bays, bays, islands, and bridges, and the navigation of ships is thriving. The system is valid.

  Further, in order to investigate the plankton distribution area, the position information of the place where the sample is acquired is indispensable. However, as the position information acquisition means, for example, the position information from a GPS (Global Positioning System) satellite is used. . Or even if position information cannot be obtained from a GPS satellite due to weather or the like, an approximate sampling position can be obtained by storing the position (or identifier) of the building in the sampling apparatus. Furthermore, water quality data and position information at the time of water sampling can be included in data at the time of water sampling (sample water sample related information) and can be automatically transmitted to an external device.

  Summarizing the effects of the present invention, it is not necessary to charter a survey ship when conducting a plankton distribution survey. In particular, in the inland seas such as the Seto Inland Sea, there are many islands and there are many buildings that can be equipped with the water sampling device of the present invention, so it becomes possible to investigate the distribution of plankton at many measurement points and at any time. . In addition, by collecting and analyzing a large number of such samples, it is possible to continuously create and update a distribution map of harmful plankton, in particular, and to build countermeasures and avoidance measures by publishing them in the predicted damage area. Can be useful.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 shows an example of the appearance of a water sampling apparatus 10 for collecting a sample in a survey water area. The water sampling apparatus 10 includes a floating ring-shaped float tank 12 and has a structure in which a plurality of water sampling tanks 17 can be attached to the float tank 12. A control unit 16 (described later) is built in the central portion 8 of the float tank 12 and includes an antenna 11 that can communicate with the outside.

  FIG. 2 schematically shows a sectional view of the water sampling apparatus 10. The central portion 8 of the water sampling apparatus 10 includes a control device 16 having an antenna 11 and a plurality of water sampling tanks 17 (indicated by 17a and 17b in the figure, but 17 when referring to the whole). An intake hatch driving unit 15 (15a, 15b, etc.) for driving the opening and closing of the intake hatch 13 (13a, 13b, etc.) for each of them is arranged. A floating ring type float tank 12 and a plurality of water sampling tanks 17 arranged along the inner periphery of the float tank 12 are provided so as to surround the central portion 8. Although the single water collection tank 17 may be sufficient, about 4-16 pieces are suitable normally. It is desirable that the number of the water sampling tanks 17 to be mounted can be adjusted by the number of samples acquired by the apparatus once installed or the frequency of collecting the water sampling tanks 17.

  In the control device 16, various water quality sensors 18 (18a, 18b, etc.) for detecting the water quality (water temperature, pH, salinity, dissolved oxygen amount, etc.) of the collected water sample are connected to each water sampling tank 17. Has been. Further, as an option, a water sampling tank water level sensor 19 (19a, 19b, etc.) for detecting the water level in the water sampling tank 17 may be provided.

  As shown in FIG. 2, the intake hatch 13 is driven upward by the intake hatch drive unit 15 to create a gap between the intake tank 17 and the intake hatch 13, from which seawater is sampled. It flows into the tank 17. At this time, a dome-shaped intake net 7 (7a, 7b, etc.) is provided on the upper part of the intake hatch 13 so as not to take in foreign matters on the sea. In addition, a filter 14 (14a, 14b, etc.) is provided inside the water sampling tank 17 to prevent further contamination of contaminants (dust). In FIG. 2, one filter is installed in each sampling tank. However, the filter is a multi-stage filter, the primary filter has a coarse mesh, the secondary filter has a fine mesh, and as much contaminants as possible can be obtained. It is desirable not to mix in the tank. In addition, the material using an oxygen permeable membrane is used for the side surface or the bottom surface of the water sampling tank, and dissolved oxygen in the sea water is exchanged with water in the water sampling tank 17, so that the sea water in the water sampling tank 17 does not become oxygen deficient It is preferable to do so.

  The control device 16 mainly controls the timing for opening and closing the water intake hatch 13. For example, the intake hatch 13 is sequentially opened at a certain time by a built-in timer (not shown). Thereby, it is possible to continuously acquire samples in different time zones. Further, as an option, when the water sampling device 10 is mounted on a floating buoy or a ship, GPS position information acquisition means (for example, the GPS receiving unit 31 in FIG. 6) for receiving position information from a GPS satellite is provided. It is desirable that the current position of the water sampling apparatus 10 can be acquired. Of course, the positional information may be received and acquired from a floating buoy or a ship. When the position of the water sampling apparatus 10 can change with such a floating buoy or ship, the position information is stored inside the control apparatus 16 when the intake hatch 13 is opened. Moreover, when connecting to a fixed building, even if it does not have a GPS position information acquisition means, when an operator attaches the water sampling apparatus 10 to a building, the position (or identifier) of the connected building is displayed. Further, it may be set as a subsequent water sampling position by being stored in the water sampling apparatus 10.

  If the plankton density is expected to be low depending on the water area or season, the control device 16 keeps the intake hatch 13 open for a certain period of time by prior setting or remote control. It is possible to concentrate the plankton density in the water sample to the extent that the number of individuals capable of detecting plankton to be collected in each water sampling tank 17 is accumulated. Furthermore, the control device 16 adjusts the opening amount of the intake hatch 13 and controls so that the filter 14 is not clogged or damaged by allowing excess seawater to flow into each sampling tank within a certain time. Is preferred.

  As described above, the control device 16 includes sensors that can detect water temperature, pH (determined from electric conductivity), salinity concentration, and the like, and measures water quality data when the intake hatch 13 is opened. For these sensors, a known technology used in XBT (eXpendable Bath Thermography) or CTD (Conductivity, Temperature and Depth) may be used. The water quality data is sent to a land analysis center by the control device 16 so as to correspond to each collected water sample, and used for later analysis of the water sample.

  FIG. 3 is a view showing a cross section of another embodiment of the water sampling apparatus 10. In this embodiment, the intake pipe 6 (6a, 6b, etc.) is mounted directly below the water sampling tank 17, and seawater is taken in by opening and closing the intake valve 5 (5a, 5b, etc.). In the water sampling tank 17a on the left side, the intake port valve 5a is in a closed state. In this state, seawater does not enter because the water sampling tank 17a is sealed. When water intake is performed, like the water sampling tank 17b on the right side, first, the water intake hatch 13b is driven upward, and a slight gap is formed between the water intake hatch 13b and the water sampling tank 17b. From this gap, the air inside the water sampling tank 17b is released and the internal pressure is lowered, and the water intake valve 5b is opened by the water pressure to take in seawater. Here, the amount of water sampling can be controlled by using the water sampling tank water level sensor 19b. Moreover, the filter 14b is installed in the lower part of the water sampling tank 17b as close as possible to the water intake.

  By doing in this way, by adjusting the length of the water intake pipe 6b by taking the position of the water intake port, it can be lowered from several tens of centimeters to several meters below the water surface. That is, it is possible to collect plankton and the like that live under the surface of the water. Samples of various depths can be obtained simultaneously by changing the length of the intake pipe for each sampling tank 17. Moreover, you may use the water sampling tank which takes water from the upper part like FIG. 2 and the water sampling tank which takes water from the lower part like FIG.

  Further, the difference between the apparatus of FIG. 3 and the apparatus of FIG. 2 is that the water quality sensor 18 is not located inside each sampling tank 17 but inside the water quality inspection unit 9 connected vertically by a pipe directly below the control device 16. It is provided. The control device 16 acquires and stores the water quality data when the intake port of the water sampling tank is opened by the water quality sensor 18 in the water quality inspection unit 9. While the intake hatch 13 is open, the water quality data may be continuously acquired at regular intervals. In addition, in order to stabilize the water sampling apparatus 10 on the sea surface, or to adjust the position of the air outlet so that air can escape from the water intake hatch 13 onto the water surface, an appropriate weight is added to the water quality inspection unit 9. A weight may be attached.

  FIG. 4 shows a design example of a protective cover for protecting the control device 16 of FIGS. 2 and 3 from waves and wind and rain. The protective cover may have a simple dome-shaped design, but the water sampling device 16 may be designed to be more familiar in consideration of being installed in a place that is easily noticeable, such as a sightseeing boat or a port. For example, FIG. 4A shows a UFO design example for the apparatus of the type shown in FIG. FIG. 4B shows an octopus type design example for the apparatus of the type shown in FIG. 4 (a) and 4 (b) is a water intake, and 2 in FIG. 4 (b) is used as an air outlet. In addition, this design has the aim of attracting people's attention and appealing to the environment.

  FIG. 5 shows an example of a building to which the water sampling apparatus 10 is connected. FIG. 5A shows a case where the buoy 20 is connected to a floating or mooring type. The connection method may be arbitrary, and an appropriate one is used. As another example, in FIG. 5 (b), when connected to a small vessel 21 such as a fishing boat or a pleasure boat, in FIG. 5 (c), when connected to a bridge pier 22 of a maritime bridge, FIG. d) shows a case where it is mounted on a breakwater 23 on the shore. In addition to this, it is conceivable to connect to various floating structures on the sea and fixed structures in contact with the coast. However, as apparent from the shape of the water sampling apparatus 10 according to the present embodiment, when mounted on a ship, the water sampling apparatus 10 is suitable for collecting a sample when the ship is stopped, but is not suitable for collecting a sample when sailing.

  FIG. 6 shows functional blocks inside the control device 16. The control device 16 mainly includes a GPS receiving unit 31 that acquires position information, a wireless communication unit 32 that enables communication with the outside, a main control unit 30 that controls the entire water sampling device 10, and opening and closing of the intake hatch 13 Timer 37 used for time control, drive control unit 33 for operating the opening and closing of the intake hatch 13, water quality data measuring unit 36 connected to various water quality sensors 18 for measuring the water quality data of the collected water sample, during sampling The water sampling data storage unit 35 stores the location information, time, water quality data, and the like. Furthermore, you may provide the water sampling tank water level detection part 34 etc. which detect the water level extract | collected in the water sampling tank 17. FIG. In addition, a waterproof container is used for the central portion 8 that stores the control device 16 and other devices.

  The collected water sample collected by the water sampling apparatus 10 is collected at an arbitrary timing and sent to the analysis center. At this time, the water sampling tank 17 may be separated from the main body and sent to the analysis center as a container for transporting the water sample. In that case, the water sampling tank 17 has a double structure so that it can be separated into an easily detachable interior tank and an exterior tank equipped with filters and sensors. Of course, the main body of the water sampling apparatus 10 that has finished sampling may be sent to an analysis center or the like (also serving as maintenance). The analysis center has an analysis laboratory, and the type and density of plankton are analyzed by microscopic observation and antibody inspection of the collected water sample. The analysis result data is accumulated in a database of a server provided in the analysis center.

  FIG. 7 shows the water sample related information, which is information related to the water sample, obtained by the water sample apparatus 10 described with reference to FIGS. For example, in this table, as the sample related information, the collection date and time when the sample was acquired, information about the collection location, the location information of the collection location obtained from the GPS receiver, the water temperature when the collected sample was collected, PH, etc. Water quality data and the like are recorded in the water sampling data storage unit 35 of the control device 16 so as to correspond to the ID assigned to each water sampling sample. This sample related information is obtained by adding position information by GPS reception or the like to the water quality data at the time of water sampling obtained by the water sampling apparatus 10 and adding the ID of the water sampling sample. The collected sample-related information to which such information is added is automatically transmitted to a server provided in the analysis center by the wireless communication unit 32 of the control device 16.

  FIG. 8 shows the sample collected in the analysis center (sample stored in the transport container) and the sample data automatically received from the sample collection device 10 via the sample collection data means of the analysis center. The process of adding an ID to be associated is shown. The analysis center has an ID embedded in the water sample (that is, the water tank container) and a means for collating and confirming the received data stored in the database of the server (for example, using an ID reader). It is desirable.

  FIG. 9 shows the flow of processing in the analysis center. The server in the analysis center (not specifically shown here) stores one or a plurality of sampling data receiving unit 42, sampling data 43, analysis result data 45, map data 48, mapping data 49, and the like. With a database. The server further includes a mapping processing unit 46 and a mapping display unit 47.

  The collected water sample receiving unit 41 in the analysis center receives the collected water samples sealed in the collected water sample containers 42a, 42b, and 42c carried by truck transportation and temporarily stocks them. As already described, IDs indicating the sampling location and time are attached to the sampling sample containers 42a, 42b, and 42c. Next, in the analysis laboratory 44, these sampled water samples are analyzed for the type of plankton and the number of individuals for each fixed amount of water by microscopic observation and antibody inspection, and the plankton distribution and other biological mechanisms are analyzed. By this time, water quality data at the time of water sampling has already been transmitted from the water sampling device 10 that has collected the water by the water sampling data receiving unit 42 and stored in the water sampling data 43 as a database. . In the analysis laboratory 44, the ID of the water sampling data stored in the water sampling data 43 is compared with the ID associated with the water sampling sample, and the water quality data and the water sampling place at the time of water sampling are specified. Detailed data analysis can be performed.

  Here, a known technique may be used for microscopic observation and antibody inspection in the analytical laboratory 44. For example, a method for discriminating barnacles attached larvae disclosed in Japanese Patent Application Laid-Open No. 2004-12467, and a small virus that can be specifically infected with red tide plankton and can proliferate and dissolve as disclosed in Japanese Patent Application Laid-Open No. 2003-225086. The method, the method disclosed in Japanese Patent Application Laid-Open No. 10-57055, and the method for identifying Microchitis spp. In addition, a known technique for partially automating the analysis itself (for example, the fluorescence image capturing device 15 or the observation device 10 disclosed in JP-A-5-172728) may be used.

  The analysis data obtained by analysis in the analysis laboratory 44 is accumulated in the analysis result data 45 as a database. The map data 48 is a map database that mainly includes water areas that are subject to investigation, the surrounding land, and main facility names. The mapping processing unit 46 is included in the server or a computer system connected thereto, and associates the location data of the collection location included in the analysis result data 45 with the geographical location on the map data 48 (mapping). The data mapped on the obtained map is stored in the mapping data 49. The stored mapping data 49 can be displayed in an appropriate format at any time by the mapping display unit 47. In this display, water quality data at the time of collection, such as water temperature and pH, may be displayed simultaneously as necessary. In addition, it is more useful if this data can be disclosed via the Internet in HTML or XML format.

  FIG. 10 is an example in which the plankton distribution obtained by the system of the present invention is mapped onto a map of the water area. In FIG. 10, the higher the distribution density of plankton, the darker hatching is shown, but it is actually desirable to display in color. Hazardous plankton, like barnacle larvae, adheres to the filter at the intake of the power plant, blocking the intake and causing power generation problems, as well as causing significant damage to surrounding fish farms and farms. Effect. Moreover, as is well known, the living body of jellyfishes causes similar damage such as blocking water intakes, so it is effective if there is a system that anticipates a large amount of larval plankton. Therefore, if such a harmful plankton distribution map is published on the Internet and updated regularly, effective data for predicting the occurrence of large quantities of harmful plankton for coastal areas and building countermeasures and avoidance measures Can be. Further, the present invention was made to minimize the damage to the power plant due to the occurrence of harmful plankton. As is apparent from the embodiments of the invention, the system and apparatus of the present invention are It is useful not only for academic research of other microorganisms in the water, but also.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

1 is an external view of a water sampling apparatus 10 according to one of the preferred embodiments of the present invention. It is a figure showing the outline of the section of water sampling device 10 concerning one of the suitable embodiments of the present invention. It is a figure showing the outline of the section in other embodiments of water sampling device 10 concerning one of the suitable embodiments of the present invention. It is a figure which shows the other example of a shape of the water sampling apparatus 10 which concerns on one of preferable embodiment of this invention. It is a figure which shows the example of the building to which the water sampling apparatus which concerns on one of the suitable embodiment of this invention is connected. It is a figure which shows the functional block of the control apparatus 16 of the water sampling apparatus 10 which concerns on one of preferable embodiment of this invention. It is a figure which shows the example of sample relevant information. It is a conceptual diagram of the correlation means of a sampling sample and sampling data. It is a figure which shows the process inside the analysis center which concerns on one of preferable embodiment of this invention. It is a figure which shows the example of an open plankton distribution density mapped on the map of a survey water area. It is a figure which shows the external appearance of the plankton net generally used conventionally.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Intake port 2 Air discharge port 5, 5a, 5b Intake valve 6, 6a, 6b Intake pipe 7, 7a, 7b Intake net 8 Center part 9 Water quality inspection part 10 Water sampling apparatus 11 Antenna 12 Float tank 13, 13a, 13b Water intake hatch 14, 14a, 14b Filter 15, 15a, 15b Water intake hatch drive unit 16 Controller 17, 17a, 17b Water sampling tank 18, 18a, 18b Water quality sensor 19, 19a, 19b Water sampling tank water level sensor 20 Buoy DESCRIPTION OF SYMBOLS 21 Ship 22 Bridge 23 Breakwater 30 Main control part 31 GPS receiving part 32 Wireless communication part 33 Drive control part 34 Water sampling tank water level detection part 35 Water sampling data storage part 36 Water quality data measurement part 37 Timer 41 Water sampling sample receiving part 42 Sampling Water data receiving unit 42a, 42b, 42c Sample collection container 43 Collection sample Motor 44 Analysis Laboratory 45 analysis result data 46 Mappinku processor 47 mapping the display unit 48 the map data 49 mapped data 50 plankton net 51 rope 52 pinch cock

Claims (6)

Plankton distribution survey, consisting of a water sampling device that can be connected to floating structures or fixed buildings in the survey water area, and a server provided in the analysis center that analyzes samples collected by the water sampling device A system for
The water sampling device is
At least one water sample acquisition means;
Water intake opening / closing means for separately opening and closing the water intake provided in each of the water sample acquisition means at a preset opening / closing timing;
Water quality detection means for detecting at least one water quality data with respect to each of the water sampling samples at the time of water sampling obtained by the opening of the water intake;
Position information acquisition means for acquiring own position information at the time of sampling;
Means for storing the water quality data and the position information as water sample related information;
Sampling data transmission means for transmitting the sampling sample related information to the server in association with the ID of the sampling sample;
With
The server
A database for accumulating a plurality of the water sample related information received from the water sampling data transmission means;
An input means for associating and inputting the plankton density obtained by analyzing the water sample and the ID;
Distribution output means for mapping and outputting the sampling sample related information and the plankton density on a map as plankton distribution information;
A system comprising:   The system according to claim 1, wherein the collected sample-related information includes at least one of a water temperature, a pH, and a salinity concentration at the time of collecting the water.   The system according to claim 1, wherein the preset timing of the intake opening / closing means is determined based on the position information and a time obtained from an internal timer of the water sampling device. A water sampling device that can be connected to floating structures or fixed structures in the survey area for plankton distribution investigation,
At least one water sample acquisition means;
Water intake opening / closing means for separately opening and closing the water intake provided in each of the water sample acquisition means at a preset opening / closing timing;
Water quality detection means for detecting at least one water quality data with respect to each of the water sampling samples at the time of water sampling obtained by the opening of the water intake;
Position information acquisition means for acquiring position information of the apparatus itself at the time of water sampling;
Means for storing the water quality data and the position information as water sample related information;
Sampling data transmission means for transmitting the sampling sample related information in association with the ID of the sampling sample;
A water sampling apparatus comprising:   The water sampling apparatus according to claim 4, wherein the collected water sample related information includes at least one of a water temperature, a pH, and a salinity concentration at the time of the water sampling. The water sampling device according to claim 4, wherein the preset timing of the water inlet opening / closing means is determined based on the position information and a time obtained from an internal timer.

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